CMMVC8819E The volume copy could not be created because the existing source copy is not compressed.
Explanation
When creating new volume copies, use the ignoresyncerrors parameter
only when the existing source copy is a compressed copy.
User response
Use the ignoresyncerrors parameter for compressed volume copies.
Note: The
ignoresyncerrors parameter can also help create valid copies of compressed volume
copies that were corrupted due to a bug in the compression engine.